Ryobi EXPAND-IT ALT05 Original Instructions Manual page 14

MAINTENANCE
REPLACING THE STRING HEAD
1. Insert the wrench through the hole in the
upper flange washer and the hole in the gear
head, then turn clockwise to remove the old
string head.
2. Install the new string head, align the nut
in the string head to the connector shaft
of the gear box and turn the string head
counterclockwise by hand to tighten.
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